Single-roller square cup knurling mechanism

Abstract

The invention discloses a single-roller square cup knurling mechanism. The single-roller square cup knurling mechanism comprises a knurling sleeve and a knurling wheel, wherein the knurling sleeve isfixedly connected to the upper part of a knurling seat, the knurling sleeve is provided with a square inner cavity, and the knurling wheel is movably arranged in the square inner cavity. The single-roller square cup knurling mechanism is characterized in that the knurling wheel is connected to a vertical wheel shaft, a guide roller which acts together with the knurling wheel is arranged below theknurling wheel, the guide roller is arranged in a cam groove in a rolling mode, the cam groove is formed in a cam disc, the cam disc is fixed to the knurling seat, the cam groove is also square, the cam groove makes the knurling wheel keep the same distance with the wall of the square inner cavity of the knurling sleeve during knurling work, and the guide roller is pushed by a power driving mechanism to roll along the cam groove. The single-roller square cup knurling mechanism is simple in structure, better realizes the knurling action of a square cup, improves the knurling quality of the square cup and improves the speed.

Description

technical field [0001] The invention relates to the technical field of paper cup and bowl production, in particular to a knurling mechanism of a paper cup or paper bowl machine. Background technique [0002] In the production process of paper cups and paper bowls, the knurling operation on the bottom of the paper cups and paper bowls is required, and the knurling operation must be completed by the knurling mechanism at the bottom of the cup. For paper cups and paper bowls with a square shape (the square here does not refer to a specific quadrilateral, it can be a hexagon or other polygons), it is difficult to realize knurling at the bottom of the cup, so the existing technology generally adopts expansion and compression molding, but there are also extreme If the knurling method is seldom used, see the patent No. 200610151940.9 and the patent name "Knurling Device for Square Paper Cup Bottom of Paper Cup Forming Machine". The technical solution adopted in this patent is to p...

AI Technical Summary

Problems solved by technology

For paper cups and paper bowls with a square shape (the square here does not refer to a specific quadrilateral, it can be a hexagon or other polygons), it is difficult to realize knurling at the bottom of the cup, so the existing technology generally adopts expansion and compression molding, but there are also extreme If the knurling method is seldom used, see the patent No. 200610151940.9 and the patent name "Knurling Device for Square Paper Cup Bottom of Paper Cup Forming Machine"

The technical solution adopted in this patent is to push the radial movement of the slider through the up and down movement of the ejector rod. The knurl wheel is installed on the slider. The disadvantage is that the ejector rod needs to move up and down, and the up and down movement of the ejector rod is driven by the cam. The cam is far away from the knurling part, and the accuracy of the cam curve is greatly reduced when it is transmitted to the knurling wheel. It is difficult to maintain the same contact pressure between the knurling wheel and the bottom of the cup during knurling work, which affects the knurling quality; in addition, the slider's The radial action must maintain a small sliding gap, so that the knurling wheel installed on the slider can maintain stable and good contact with the square inner cavity wall of the knurling sleeve during knurling work to ensure the quality of knurling, but it is very A small sliding gap not only increases the difficulty of processing and assembly, but also shortens the service life; in addition, since the ejector rod pushes the chute through the top slope to make the slider move, the pushing speed of the slope cannot be very fast, and the up and down movement of the ejector rod cannot be very fast. , otherwise there will be a lot of working noise, and the ejector rod will return to its position after it goes up, so the rolling speed of the knurling wheel along the knurling position at the bottom of the cup will not be very fast during knurling work, and the production speed will be slow

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